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References for strings #3

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MarcusRainbow opened this issue Dec 11, 2019 · 0 comments

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MarcusRainbow commented Dec 11, 2019

For example, the following is invalid Rust code:

let a: String = ...;
let b: String = ...;
let s: String = a + b;

String concatenation only works if its right hand side argument is a &str. The last line of the above code should read:

let s: String = a + &b;

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